Problem with one reservation and cancellation

Hello i wish you are going well

im writing because i have one problem with one reservation that i did cancellation.

the cancelation is neve acceptet i dont know why, you can see at the program.

now im receiving emails that i need to pay the invoice


can you please to verify because i made e lot of masages for this problem and you are telling me that i need to cance this problem. 
than you

im waiting